Pre-twisted strain clamp

Abstract

The utility model relates to the technical field of strain clamps, and discloses a pre-twisted strain clamp, which comprises a fixed column and a connecting plate, a first spring is fixedly connected in the fixed column, the other end of the first spring is fixedly connected with a first sliding plate, and the outer wall of the right side of the first sliding plate is fixedly connected with the connecting plate. And a metal sleeve is fixedly connected to the interior of the connecting plate, second springs are fixedly connected to the inner wall of the metal sleeve, a metal shaft is fixedly connected to the other ends of the multiple second springs, a sliding strip is fixedly connected to the outer wall of the metal shaft, and the outer wall of the sliding strip makes contact with the strip-shaped plate. According to the pre-twisted wire clamp, when a line is connected to the wire connecting end, the spring I is fixedly connected in the fixed column, the other end of the fixed column is fixedly connected with the sliding plate, and the sliding grooves are formed in the two sides of the sliding plate and are matched with the limiting blocks for use, so that the problem of insufficient tension resistance of the pre-twisted wire clamp under extremely severe environmental conditions is solved.

Description

Technical Field

[0001] This utility model relates to the field of tension clamp technology, and in particular to a pre-twisted tension clamp. Background Technology

[0002] In power transmission systems, overhead transmission lines play a crucial role. To ensure that power can be safely and efficiently transmitted from power plants to user terminals, reliable connecting components are needed to secure the conductors. As an important connecting device, pre-twisted clamps play a vital role in power lines, undertaking the important tasks of securing conductors, transmitting loads, and ensuring electrical connections. At the same time, pre-twisted clamps also have monitoring functions to enable timely maintenance.

[0003] In large-scale power transmission systems such as the State Grid, overhead transmission lines are the primary means of power transmission. These lines often span distances of hundreds or even thousands of kilometers, for example, transmitting electricity from large hydropower stations to urban power grid hubs. Pre-stranded clamps are used to connect conductors to insulators and tension tower components, and can withstand enormous tensile forces. Due to the extremely high weight and tension of conductors in long-distance transmission lines, pre-stranded clamps, through their special stranding structure, can evenly distribute the tension, preventing stress concentration and breakage of the conductors at suspension or connection points.

[0004] In early power transmission lines and some communication lines, bolt-type tension clamps were widely used. These clamps use the tightening force of bolts to hold the conductor in place and achieve tension. However, they have obvious limitations. During long-term operation, the bolts are easily loosened by vibration, temperature changes and corrosion. Therefore, a new type of tension pre-stirred clamp is needed to meet market demand. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a pre-stretched tension clamp, which aims to improve the problem that bolts in the prior art are easily loosened by vibration, temperature changes and corrosion.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pre-twisted tension clamp, comprising a fixed post and a connecting plate, wherein a spring is fixedly connected inside the fixed post, a sliding plate is fixedly connected to the other end of the spring, a connecting plate is fixedly connected to the right outer wall of the sliding plate, a metal sleeve is fixedly connected inside the connecting plate, and springs are fixedly connected to the inner walls of the metal sleeves, and a metal shaft is fixedly connected to the other end of multiple springs, a sliding strip is fixedly connected to the outer wall of the metal shaft, the outer wall of the sliding strip is in contact with the strip plate, and square holes are provided on the outer wall of the strip plate, the inner walls of multiple square holes engage and slide with the sliding strip, and an adjustment mechanism is rotatably connected to the other end of the connecting plate, the adjustment mechanism being used to adjust the angle.

[0007] As a further description of the above technical solution:

[0008] The adjustment mechanism includes a first rotating shaft, the outer wall of which is rotatably connected to the inner wall of the machine tool fixed column. The other end of the first rotating shaft is fixedly connected to a clamping column. The upper and lower ends of the right side of the clamping column are both fixedly connected to clamping teeth. The inside of the clamping teeth is slidably connected to a connecting shaft. The top of the connecting shaft is fixedly connected to a second rotating shaft. The outer wall of the second rotating shaft is rotatably connected to a rotating plate. The outer wall of the middle part of the clamping teeth is rotatably connected to a second clamping tooth, and the outer wall of the second clamping tooth meshes with the first clamping tooth.

[0009] As a further description of the above technical solution:

[0010] Limiting blocks are fixedly connected to the front side of the inner wall of each fixed column, and a fixed shaft is fixedly connected to the outer wall of each fixed column.

[0011] As a further description of the above technical solution:

[0012] A support plate is fixedly connected to the outer wall of the second clamping tooth, and a connecting end is fixedly connected to the right outer wall of the support plate.

[0013] As a further description of the above technical solution:

[0014] A second sliding plate is fixedly connected to the left outer wall of the clamping column, and the outer wall of the second sliding plate is in contact with the circular baffle.

[0015] As a further description of the above technical solution:

[0016] The connecting plate is fixedly connected to the inside of the connecting plate, and the fixed column is fixedly connected to the outer wall of the fixing plate.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the connecting end is in contact with the pre-twisted wire, a square plate is fixedly connected to the lower side of the pre-twisted wire, and a connecting thread is fixedly connected to the other end of the pre-twisted wire.

[0019] As a further description of the above technical solution:

[0020] The sliding plate 1 has sliding grooves on both its left and right outer walls.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when the line is connected to the connection end, a spring is fixedly connected inside the fixed column, and a sliding plate is fixedly connected to the other end of the fixed column. Sliding grooves are opened on both sides of the fixed plate to cooperate with the limiting block. An elastic device spring is fixed inside the fixed plate. This can make the metal shaft fixed on its outer wall so that the pre-twisted wire clamp has insufficient tension resistance under extremely harsh environmental conditions.

[0023] 2. In this utility model, in order to adapt to more environments and terrains, an adjustment mechanism is also installed on the front side of the connecting plate. The device has a rotating shaft two to rotate to adjust the contact angle between the bottom circular plate of the rotating shaft two and the upper part of the clamping column, so that the multiple clamping teeth one fixed on the front side of the clamping column can relax the fixation on the clamping teeth two, thereby realizing the ability of the clamping teeth two to freely adjust the angle, realizing the adjustability to different environments, and meeting market demand. Attached Figure Description

[0024] Figure 1 This is a front perspective view of a pre-twisted tension clamp fixing post proposed in this utility model;

[0025] Figure 2 This is a structural diagram of a pre-stretched tension clamp connecting plate proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of a pre-twisted tension clamp sliding plate according to the present invention.

[0027] Figure 4 This is a structural illustration of a pre-twisted tension clamp sliding bar proposed in this utility model;

[0028] Figure 5 This is a structural exploded view of a pre-twisted tension clamp spring II proposed in this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the rotating shaft of a pre-twisted tension clamp proposed in this utility model.

[0030] Legend:

[0031] 1. Fixed column; 2. Adjusting mechanism; 201. Clamping column; 202. Clamping tooth one; 203. Rotating shaft one; 204. Clamping tooth two; 205. Connecting shaft; 206. Rotating plate; 207. Rotating shaft two; 3. Strip plate; 4. Connecting plate; 5. Sliding strip; 6. Spring one; 7. Sliding plate one; 8. Metal shaft; 9. Spring two; 10. Metal sleeve; 11. Square hole; 12. Sliding groove; 13. Circular baffle; 14. Sliding plate two; 15. Support plate; 16. Connecting end; 17. Fixed plate one; 18. Limiting block; 19. Pre-twisted wire; 20. Square plate; 21. Fixed shaft; 22. Fixed plate two; 23. Connecting wire. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see the appendix Figure 3 - Appendix Figure 5 This utility model provides an embodiment of a pre-twisted tension clamp, comprising a fixed post 1 and a connecting plate 4. A spring 6 is fixedly connected inside the fixed post 1, and a sliding plate 7 is fixedly connected to the other end of the spring 6. The connecting plate 4 is fixedly connected to the right outer wall of the sliding plate 7. A metal sleeve 10 is fixedly connected inside the connecting plate 4. Springs 9 are fixedly connected to the inner walls of the metal sleeve 10. A metal shaft 8 is fixedly connected to the other end of multiple springs 9. The fixed post 1 is designed to have a spring 6 inside, which is firmly fixed inside the fixed post 1. The other end of the spring 6 is connected to a sliding plate 7, so that the sliding plate 7 can move to a certain extent under the action of the spring 6. A sliding strip 5 is fixedly connected to the outer wall of the metal shaft 8. The outer wall of the sliding strip 5 contacts the strip plate 3. Square holes 11 are opened on the outer wall of the strip plate 3. The inner walls of multiple square holes 11 engage and slide with the sliding strip 5. An adjustment mechanism 2 is rotatably connected to the other end of the connecting plate 4. The adjustment mechanism 2 is used to adjust the angle.

[0034] Specifically, the interior of the fixed column 1 is designed to have a spring 6, the other end of which is fixedly connected to a sliding plate 7. A connecting plate 4 is fixedly connected to the outer right side of the sliding plate 7. A metal sleeve 10 is fixedly connected inside the connecting plate 4. Multiple springs 9 are evenly fixedly connected to the inner wall of the metal sleeve 10. The other ends of these springs 9 are fixedly connected to a metal shaft 8. A sliding strip 5 is fixedly connected to the outer wall of the metal shaft 8. The outer wall of the sliding strip 5 is in close contact with the strip plate 3, so that the strip plate 3 can slide along the sliding strip 5.

[0035] Please see the appendix Figure 4 - Appendix Figure 6The adjusting mechanism 2 includes a rotating shaft 203, the outer wall of which is rotatably connected to the inner wall of the machine tool fixed column 1. The other end of the rotating shaft 203 is fixedly connected to a clamping column 201. The upper and lower ends of the right side of the clamping column 201 are fixedly connected to clamping teeth 202. The inside of the clamping teeth 202 is slidably connected to a connecting shaft 205. The top of the connecting shaft 205 is fixedly connected to a rotating shaft 207. The other end of the rotating shaft 203 is firmly fixedly connected to a clamping column 201. This clamping column 201 has a specific structure, and the upper and lower ends of its right side are fixedly connected to several clamping teeth 202. The outer wall of the rotating shaft 207 is rotatably connected to a rotating plate 206. The middle outer wall of the clamping teeth 202 is rotatably connected to a clamping tooth 204. The outer wall of the clamping tooth 204 meshes with the clamping tooth 202.

[0036] Specifically, the other end of the rotating shaft 203 is firmly connected to a clamping post 201. The design of this clamping post 201 is ingenious, with a pair of clamping teeth 202 fixedly connected to both the upper and lower ends on its right side. These clamping teeth 202 are not only firmly fixed to the clamping post 201, but also have a connecting shaft 205 slidably connected inside them. The top of the connecting shaft 205 is fixedly connected to another important component—the rotating shaft 207. The outer wall of the rotating shaft 207 can rotate freely, and a rotating plate 206 is rotatably connected to its top.

[0037] Please see the appendix Figure 1 - Appendix Figure 3 A support plate 15 is fixedly connected to the outer wall of the clamping tooth 204. A connecting end 16 is fixedly connected to the right outer wall of the support plate 15. A sliding plate 14 is fixedly connected to the left outer wall of the clamping column 201. On the outer wall of the clamping tooth 204, we can see that a support plate 15 is fixedly connected. This support plate 15 is designed to provide additional stability and support. The outer wall of the sliding plate 14 is in contact with the circular baffle 13. Limiting blocks 18 are fixedly connected to the front side of the inner wall of the fixed column 1. A fixed shaft 21 is fixedly connected to the outer wall of the fixed column 1.

[0038] Specifically, a support plate 15 is fixedly connected to the outer wall of the clamping tooth 204. The function of this support plate 15 is to provide additional stability and support to ensure the stability of the entire device. A connecting end 16 is fixedly connected to the right outer wall of the support plate 15. At the same time, a sliding plate 14 is fixedly connected to the left outer wall of the clamping column 201. The sliding plate 14 is designed to provide sliding function during the operation of the device to achieve certain specific mechanical actions.

[0039] Please see the appendix Figure 2 - Appendix Figure 4The connecting plate 4 is fixedly connected to the inside of the fixing plate 17, the fixing column 1 is fixedly connected to the outer wall of the fixing plate 22, the outer wall of the connecting end 16 is in contact with the pre-twisted wire 19, the lower side of the pre-twisted wire 19 is fixedly connected to the square plate 20, the internal structure of the connecting plate 4 is fixedly connected to the fixing plate 17, the fixing plate 17 is firmly installed inside the connecting plate 4 to ensure its stability and reliability, the other end of the pre-twisted wire 19 is fixedly connected to the connecting wire 23, and the left and right outer walls of the sliding plate 7 are provided with sliding grooves 12;

[0040] Specifically, a fixing plate 17 is fixedly connected to the internal structure of the connecting plate 4 to ensure its stability and reliability. At the same time, a fixing plate 22 is also fixedly connected to the outer wall of the fixing column 1, further enhancing the overall structural stability. In addition, the outer wall of the connecting end 16 is in close contact with the pre-twisted wire 19 to ensure smooth and stable current transmission. To further enhance the fixing effect of the pre-twisted wire 19, a square plate 20 is fixedly connected to its lower side, making the pre-twisted wire 19 more stable during use.

[0041] Working principle: When the wire is connected to the connection end 16, the fixed post 1 has a spring 6 fixedly connected inside, and the other end of the fixed post 1 is fixedly connected to the sliding plate 7. The sliding grooves 12 are opened on both sides of the sliding plate 7 and work with the limiting block 18. At the same time, the front end of the sliding plate 7 is also fixedly connected to the connecting plate 4, and the elastic device spring 9 is fixed inside the sliding plate 3. The spring 9 can push the metal shaft 8 fixed on its outer wall outward, so that the sliding strip 5 connected to the outer wall of the metal shaft 8 can be engaged with the multiple different square holes 11 opened on the strip plate 3. Since the end of the sliding strip 5 is provided with a slope, it can slide and be fixed well. When the connecting plate 4 is pulled, the device can greatly increase its tensile performance, which solves the problem of insufficient tensile performance of the pre-twisted wire clamp in extreme environmental conditions.

[0042] Meanwhile, to adapt to more environments and terrains, an adjustment mechanism 2 is also installed on the front side of the connecting plate 4. This device has a rotating shaft 207 that rotates to adjust the contact angle between the bottom circular plate of the rotating shaft 207 and the upper part of the clamping column 201. This allows the multiple clamping teeth 202 fixed on the front side of the clamping column 201 to loosen their fixation on the clamping teeth 204, thereby enabling the clamping teeth 204 to freely adjust their angle. At the same time, a rotating shaft 203 is also fixedly connected to the rear side of the clamping column 201, so that the clamping column 201 can rotate freely while adjusting the angle. This achieves adjustability for different environments and meets market demands.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pre-stretched tension clamp, comprising a fixing post (1) and a connecting plate (4), characterized in that: A spring (6) is fixedly connected inside the fixed column (1). A sliding plate (7) is fixedly connected to the other end of the spring (6). A connecting plate (4) is fixedly connected to the outer right side of the sliding plate (7). A metal sleeve (10) is fixedly connected inside the connecting plate (4). A spring (9) is fixedly connected to the inner wall of the metal sleeve (10). A metal shaft (8) is fixedly connected to the other end of the multiple springs (9). A sliding strip (5) is fixedly connected to the outer wall of the metal shaft (8). The outer wall of the sliding strip (5) is in contact with the strip plate (3). A square hole (11) is opened on the outer wall of the strip plate (3). The inner wall of the multiple square holes (11) engages and slides with the sliding strip (5). An adjustment mechanism (2) is rotatably connected to the other end of the connecting plate (4). The adjustment mechanism (2) is used to adjust the angle.

2. The pre-stretched tension clamp according to claim 1, characterized in that: The adjustment mechanism (2) includes a first rotating shaft (203), the outer wall of which is rotatably connected to the inner wall of the machine tool fixed column (1), and a clamping column (201) is fixedly connected to the other end of the first rotating shaft (203). The upper and lower ends of the right side of the clamping column (201) are both fixedly connected to a first clamping tooth (202). The inside of the first clamping tooth (202) is slidably connected to a connecting shaft (205). The top of the connecting shaft (205) is fixedly connected to a second rotating shaft (207). The outer wall of the second rotating shaft (207) is rotatably connected to a rotating plate (206). The outer wall of the middle part of the first clamping tooth (202) is rotatably connected to a second clamping tooth (204). The outer wall of the second clamping tooth (204) meshes with the first clamping tooth (202).

3. The pre-stretched tension clamp according to claim 1, characterized in that: Limiting blocks (18) are fixedly connected to the front side of the inner wall of the fixed column (1), and a fixed shaft (21) is fixedly connected to the outer wall of the fixed column (1).

4. A pre-stretched tension clamp according to claim 2, characterized in that: The outer wall of the second clamping tooth (204) is fixedly connected to a support plate (15), and the right outer wall of the support plate (15) is fixedly connected to a connecting end (16).

5. A pre-stretched tension clamp according to claim 2, characterized in that: A sliding plate two (14) is fixedly connected to the left outer wall of the clamping column (201), and the outer wall of the sliding plate two (14) is in contact with the circular baffle (13).

6. A pre-stretched tension clamp according to claim 1, characterized in that: The connecting plate (4) is fixedly connected to a first fixing plate (17), and the outer wall of the fixing column (1) is fixedly connected to a second fixing plate (22).

7. A pre-stretched tension clamp according to claim 4, characterized in that: The outer wall of the connecting end (16) is in contact with the pre-twisted wire (19), a square plate (20) is fixedly connected to the lower side of the pre-twisted wire (19), and a connecting wire (23) is fixedly connected to the other end of the pre-twisted wire (19).

8. A pre-stretched tension clamp according to claim 1, characterized in that: The sliding plate 1 (7) has sliding grooves (12) on both the left and right outer walls.

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